Inclusive Single-Particle Production at 90° in the Center-of-Mass System for Nuclear Targets and 28.5-GeV/cIncident Protons

The invariant cross section for the inclusive production of π⁺, π^-, K⁺, K^-, p, and p̄ is presented for proton-nucleon interactions at plab=28.5 GeV/c. Beryllium, titanium, and tungsten targets were used and the yields were extrapolated to $A=1$ using the power law σ~A^α. The exponent α increases with pT, except for protons. The pT dependence of the cross sections is compared with a simple fireball model.